Finding the perfect Audio Delay setting?

[nitricpyro]

I'm looking for better strategies in finding the perfect audio delay setting (in DVDecrypter) for converting to DivX. Some files come out with sync issues and as of yet the only way I know to find the delay is to import the audio and video file separately into Premiere, zooming in real close, doing some math and figuring it out manually.

Someone has to have a better way. DVDecrypter doesn't always automatically pick the delay that works.

I would seriously appretiate any suggestions/strategies.

Thanks

[setarip_old]

Hi!

If you successfully rip with DVD Decrypter v.3.5.4 in "File" mode, selecting "ALL files" and NOT just "movie files" (without any "dummy sectors" being created) and convert to DivX-compressed .AVI with MPEGMediator, you shouldn't have any A/V synch concerns...

(If DVD Decrypter v.3.5.4 DOES create some "dummy sectors", your DVD contains "RipGuard" copy protection, which will foul up your A/V synch. This can be easily dealt with and corrected by loading the rip into VOBBlanker, set a new output directory/folder, select "Process all" and then press the "Process" radiobutton)

[nitricpyro]

That makes sense. I will certainly try that...

Another thing, I started making "Stream Information.txt" files that give a delay setting for the file. Should I trust the information in these files completely or should I trust settings that are "automatically" set in Gordian Knot? (Sometimes they are the same, and sometimes not)

[GUZILLA]

Hello. I downloaded VOBBlanker, and tried to run it like you suggested, but the error I am getting is "Invalid input file. Please select the video manager VIDEO_TS.IFO" It seems to require a specific file called "VIDEO_TS.IFO". But my ripped files from DVD Decrypter only have a filed called "VTS_01_0.IFO" along with the VOB files. This file is rejected by VOBBlanker.

The problem I am trying to correct is that when these VOB files have been processed by AutoGK, using XVID, with all auto settings to a 700K size, or to a full DVD size, the audio is several seconds ahead of the video motion. So you hear the speech, then a few seconds later, see the person's mouth moving.

Thank you for your help on this.

[setarip_old]

@GUZILLA

Hi!

Sounds like you didn't use DVD Decrypter v.3.5.4 in "File" mode, selecting "ALL files" and NOT just "movie files"...

[GUZILLA]

Thank you. I am new at this and appreciate your help. Is there any way to fix the Movie Only VOB files I already have, since it apparently won't run through VOBBlanker?

[cakuhnen]

There's another easy option, use VOBEDIT then open the first Vob that use the entire movie like VTS_01_1.VOB its not always the same but you can check it with other programs.
But remember to see the correct delay your Vob must be with intact with the Navigation Packs then start Vobedit click open select the full movie Vob, select only the start Vob like my example VTS_01_1.VOB then when you click ok it show you the contents of the VOB. OK now go to Menu Edit and select
Get Video/Audio Delay. I always use this and it works all the time for me, newer have any problems with audio desync :)

[GUZILLA]

OK. So now in the other thread, the moderator accused me of hijacking that thread, but my question was directly in response to a technique suggested in that thread which I had tried. The moderator asked me to continue all questions into this thread. Sorry if I have violated a rule, but I respectfully disagree that any hijacking or cross posting was done. Thus, here I am in this thread only, per the moderator's request.

Here now, I have used the suggestion of VOBEdit, (Thank you) to determine the sync error, and it returned 3 different numbers. <80> <82> <83>. Then (when trying to use VDubMod per the other thread) to correct this difference, that program informed me that what is really happening is the audio stream is Variable Bit Rate and is improper. I can see from how the stream works during viewing that it jumps around some, so any of these 3 numbers seems correct some of the time, but not all the time. VDubMod suggested decompressing the entire audio stream into a WAV file, and then recompressing using a constant bit rate encoder. So now a new question arises as to what tool or tools would allow me to do that? I wish I knew the answer to that, as it is not in my nature to enjoy asking questions and being put down for it.

Again, I am grateful for all of you trying to help on this. And I feel sincerely that my experience here is in line with the topic of this thread and the other thread. What is happening in this case is surely happening to other people also, and so this discussion is or will be helpful to others as well. Thank you again.